- There is no such thing as "item verification" or "item checking", and there are no such things as fake, illegal, disappearing, unsafe, or hacked items.
- There is no such thing as a "Steam admin".
- SteamRep is not a part of Steam or Valve.
- Valve never conducts official business in Steam chat.
- Nobody will VAC ban, trade ban, or otherwise punish you for refusing to follow their instructions in Steam chat.
- Once you've traded away your items, they're gone.
See also: What does a middleman do?